poner la mano en el fuego*
* to put a hand in the fire
On Rare Occasion
Used to say that you believe in someone or something so strongly that you would put your hand in a fire and you wouldn't burn yourself.
"Pondría mi mano en el fuego por él y sé que no me quemaría."
"I would put my hand on a fire for him and I'm sure I wouldn't burn myself."
Submitted October 2020